// QWaitCondition returnCondition;
// QMutex mutex;
static uint password_retries = 0;
const char * thread_password_cb(const char *prompt, http_t *http, const char *method, const char *resource, void *user_data)
{
    Q_UNUSED(prompt)
    Q_UNUSED(http)
    Q_UNUSED(method)
    Q_UNUSED(resource)

    kDebug() << "-----------thread_password_cb------"<< "password_retries" << password_retries;
    kDebug() << QThread::currentThreadId();

    if (password_retries == 3) {
        // cancel the authentication
        cupsSetUser(NULL);
        return NULL;
    }
//     QPointer<KPasswordDialog> dlg = new KPasswordDialog(0, KPasswordDialog::ShowUsernameLine);
//     dlg->setPrompt(i18n("Enter an username and a password to complete the task"));
//     dlg->setUsername(QString::fromUtf8(cupsUser()));
//     // check if the password retries is more than 0 and show an error
    bool showErrorMessage = false;
    if (password_retries++) {
        showErrorMessage = true;
//         dlg->showErrorMessage(QString(), KPasswordDialog::UsernameError);
//         dlg->showErrorMessage(i18n("Wrong username or password"), KPasswordDialog::PasswordError);
    }

    CupsThreadRequest *thread = static_cast<CupsThreadRequest*>(user_data);
    bool returnBool = false;
    kDebug() <<QMetaObject::invokeMethod(NCups::instance(),
                              "showPasswordDlg",
                              Qt::QueuedConnection,
                              Q_ARG(bool*, &returnBool),
                              Q_ARG(QString, QString::fromUtf8(cupsUser())),
                              Q_ARG(bool, showErrorMessage));
//     mutex.lock();
    kDebug() << "~~~~~~WAIT";
    while (returnBool == false) {
        sleep(1);
//         kDebug() << "~~~~~~WAIT 1";

    }

    while (returnBool == true) {
        sleep(1);
        kDebug() << "~~~~~~WAIT 2";

    }

//     returnCondition.wait(&mutex);
    kDebug() << "~~~~~~RELEASED";
//     mutex.unlock();

    if (thread->property("canceled").toBool()) {
        // the dialog was canceled
        password_retries = -1;
        cupsSetUser(NULL);
        return NULL;
    } else {
        QString username = thread->property("username").toString();
        QString password = thread->property("password").toString();
        cupsSetUser(username.toUtf8());
        return password.toUtf8();
    }
}

void CupsThreadRequest::run()
{
    kDebug() << QThread::currentThreadId();
    cupsSetPasswordCB2(thread_password_cb, this);
    req = new Request();
    exec();
}

void NCups::showPasswordDlg(bool *returnBool,
                                        const QString &username,
                                        bool showErrorMessage)
{
//     mutex.lock();
    kDebug() << QThread::currentThreadId();
//     KPasswordDialog *dlg = new KPasswordDialog(0, KPasswordDialog::ShowUsernameLine);
    dlg->setPrompt(i18n("Enter an username and a password to complete the task"));
    dlg->setUsername(username);
    if (showErrorMessage) {
        dlg->showErrorMessage(QString(), KPasswordDialog::UsernameError);
        dlg->showErrorMessage(i18n("Wrong username or password"), KPasswordDialog::PasswordError);
    }
    dlg->setModal(true);
    dlg->exec();
    *returnBool = true;
    kDebug()<< "----------------- Finish2";
//     if (dlg->exec()) {
//         setProperty("username", dlg->username());
//         setProperty("password", dlg->password());
//         setProperty("canceled", false);
//         delete dlg;
//         kDebug()<< "Finish1";
//         returnCondition.wakeAll();
//     } else {
//         // the dialog was canceled
//         delete dlg;
//         setProperty("username", QString());
//         setProperty("password", QString());
//         setProperty("canceled", true);
//         kDebug()<< "Finish2";
//         returnCondition.wakeAll();
//     }
setProperty("username", QString("root"));
        setProperty("password", QString("getapan81"));
        setProperty("canceled", false);
//         returnCondition.wakeAll();

//     mutex.unlock();

}